Method getLength

src/figtree/treeviewer/ReRootedTree.java:243–247

@param node the node whose branch length (to its parent) is being requested. @return the length of the branch to the parent node (0.0 if the node is the root).

(Node node)

     * @return the length of the branch to the parent node (0.0 if the node is the root).
     */
    public double getLength(Node node) {
        if (!hasLengths) throw new IllegalArgumentException("This tree has no branch lengths");
        if (!lengthsKnown) calculateBranchLengths();
        return ((ReRootedNode)node).getLength();
    }

    /**
     * @param node the node whose parent is requested